Fall 2000 Student Essays on Chemical ... -
The poly-acrylamide in Gly-PAM may be anionic. In this case, a cationic retention agent must be added to ensure adsorption of the resin on fibers. ... In the 1960's and early 1970's paper mills in Europe switched from acidic to alkaline papermaking techniques, partly for environmental concerns and partly because of the availability of cheap ...
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